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Please Help me I would beg you and 20 points!

Please Help me I would beg you and 20 points!-example-1

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Add all the numbers of cases: 63 + 140 + 112 = 315
Each fraction is each number of cases divided by the total.

Truck: 63/315 = 1/5

Train: 140/315 = 4/9

Air: 112/315 = 16/45
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